Detecting crop irrigation status in orchard canopies with airborne and ASTER thermal imagery. - Guadalupe Sepulcre-Cantó; Pablo J. Zarco-Tejada; Jose A. Jiménez-Berni; Juan C. Jiménez-Muñoz; José A. Sobrino; Antonio J. Rodriguez; Victor Cifuentes (IGARSS, 2007)